Inferring Ideological Ambiguity from Survey Data

Advances in Political Economy: Institutions, Modeling and Empirical Analysis, Springer, 2013

16 Pages Posted: 25 Jul 2018

See all articles by Arturas Rozenas

Arturas Rozenas

New York University (NYU) - Wilf Family Department of Politics

Date Written: September 10, 2013

Abstract

The paper presents a Bayesian model for estimating ideological ambiguity of political parties from survey data. In the model, policy positions are defined as probability distributions over a policy space and survey-based party placements are treated as random draws from those distributions. A cross-classified random-effects model is employed to estimate ideological ambiguity, defined as the dispersion of the latent probability distribution. Furthermore, non-response patterns are incorporated as an additional source of information on ideological ambiguity. A Markov chain Monte Carlo algorithm is provided for parameter estimation. The usefulness of the model is demonstrated using cross-national expert survey data on party platforms.

Keywords: Bayesian Item Response, Ideological Ambiguity, MCMC

Suggested Citation

Rozenas, Arturas, Inferring Ideological Ambiguity from Survey Data (September 10, 2013). Advances in Political Economy: Institutions, Modeling and Empirical Analysis, Springer, 2013, Available at SSRN: https://ssrn.com/abstract=3207763

Arturas Rozenas (Contact Author)

New York University (NYU) - Wilf Family Department of Politics ( email )

19 West 4
New York, NY 10012
United States

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